Beach towel security strap



FIG. 1 is a top plan view of a beach towel security strap showing my design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is an elevational view of an end thereof, both ends being identical. 

The ornamental design for a beach towel security strap, as shown and described. 